CN216415473U - Drip irrigation fertilization pipe and injection fertilization system - Google Patents

Abstract

The utility model provides a fertigation pipe and injection fertilization system drip irrigation. A drip irrigation fertilization tube comprising: a water inlet and a water outlet are respectively arranged at the two ends of the water pipe; the fertilizer inlet pipe is obliquely arranged on the communicating water pipe along the length direction of the communicating water pipe, and one end of the fertilizer inlet pipe, which is adjacent to the water outlet, is communicated with the communicating water pipe; and the first switch valve is arranged on the fertilizer inlet pipe. When using, intercommunication water piping connection is in two drip irrigation between the pipe, can follow the direction from water inlet to delivery port and continuously carry irrigation water, advances the fertilizer pipe and is connected with the water pump that is used for carrying the fertilizer liquid for carry the fertilizer liquid in to the intercommunication water pipe. The fertilizer inlet pipe is inclined to the communicated water pipe along the water flow direction, so that the resistance of the fertilizer liquid entering the communicated water pipe can be reduced, the drip irrigation and fertilization operation can be realized by adopting the water pump with lower power, the problem of 'backflow' of the fertilizer liquid caused by overlarge water pressure of the drip irrigation pipe is avoided, the equipment cost is reduced, and the success rate of the drip irrigation and fertilization is improved.

Description

Drip irrigation fertilization pipe and injection fertilization system

Technical Field

The utility model belongs to the technical field of drip irrigation, concretely relates to fertilization sleeve pipe and injection fertilization system.

Background

Drip irrigation is a technology of directly conveying water to roots of plants for local irrigation by using a drip irrigation pipe through an orifice or a water dropper on the drip irrigation pipe, can improve the utilization rate of water resources compared with the traditional flood irrigation and spray irrigation, and is suitable for economic crops such as crops, fruit trees, vegetables, flowers and the like in arid or semi-arid regions.

Fertigation can be carried out in the time of driping irrigation, forms fertilizer liquid with fertilizer dissolution in the water during the fertilization, through the water pump send to drip irrigation intraductally and carry to the root of plant, so form the mode of driping irrigation of "liquid manure is integrative" formula. In order to improve the drip irrigation efficiency and ensure that the drip irrigation pipe has enough water outlet speed, a certain water pressure is required to be arranged in the drip irrigation pipe, and when the water pressure in the drip irrigation pipe is higher, fertilizer liquid is not easy to be pumped into the drip irrigation pipe.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fertigation pipe and injection fertilization system drip irrigation aims at solving when the water pressure in the drip irrigation pipe is higher, and the difficult problem of being pumped to drip irrigation intraductal of fertilizer liquid.

In order to achieve the above object, the utility model adopts the following technical scheme:

in a first aspect, the utility model provides a drip irrigation fertilization pipe, include: a water inlet and a water outlet are respectively arranged at the two ends of the water pipe; the fertilizer feeding pipe is obliquely arranged on the communicating water pipe along the length direction of the communicating water pipe, and one end of the fertilizer feeding pipe, which is adjacent to the water outlet, is communicated with the communicating water pipe; and the first switch valve is arranged on the fertilizer inlet pipe.

In one possible implementation, the drip irrigation fertilization tube further includes: one end of the water outlet pipe is communicated with the communicating water pipe; and the second switch valve is arranged on the water outlet pipe.

In a possible implementation manner, the water outlet pipe and one end communicated with the communicating water pipe, the fertilizer inlet pipe and one end communicated with the communicating water pipe are sequentially arranged along the direction from the water inlet to the water outlet.

In a possible implementation manner, the fertilizer feeding pipe comprises a straight pipe part which is arranged obliquely to the communication water pipe along the length direction of the communication water pipe, and one end of the fertilizer feeding pipe, which is adjacent to the water outlet, extends into the communication water pipe.

In a possible implementation mode, the fertilizer inlet pipe is further arranged on a bent pipe part in the communicating water pipe, one end of the bent pipe part is communicated with one end of the straight pipe part in the communicating water pipe, and the other end of the bent pipe part faces towards the water outlet.

In a possible implementation manner, the outer pipe wall of the end of the communication water pipe adjacent to the water inlet and the water outlet is provided with an annular clamping groove.

In a possible implementation manner, one end of the outer pipe wall of the communication water pipe, which is adjacent to the water inlet and the water outlet, is provided with a guiding conical surface.

The utility model provides a fertilize pipe drips irrigation when using, intercommunication water piping connection is in two drip irrigation between the pipe, can follow the direction from water inlet to delivery port and continuously carry irrigation water, advances fertile pipe and is connected with the water pump that is used for carrying the fertilizer liquid for carry the fertilizer liquid in to the intercommunication water piping. The fertilizer inlet pipe is inclined to the communicated water pipe along the water flow direction, so that the resistance of the fertilizer liquid entering the communicated water pipe can be reduced, the drip irrigation and fertilization operation can be realized by adopting the water pump with lower power, the problem of 'backflow' of the fertilizer liquid caused by overlarge water pressure of the drip irrigation pipe is avoided, the equipment cost is reduced, and the success rate of the drip irrigation and fertilization is improved.

In a second aspect, the present invention provides an injection fertilization system, comprising: a drip irrigation fertilization tube as in any one of the above implementations; a fertilizer liquid barrel; and a liquid inlet of the water pump is communicated to the fertilizer liquid barrel, and a liquid outlet of the water pump is communicated with the fertilizer inlet pipe.

In one possible implementation, the injection fertilization system further comprises a filter assembly disposed within the fertilizer barrel.

In one possible implementation, the filter assembly includes: the water pump is arranged in the water tank, the water tank is provided with a water inlet communicated with the water pump, and the water pump is arranged in the water tank; and the filter screen is covered on the opening.

The utility model provides an injection fertilization system has the same technological effect rather than drip irrigation fertilization pipe, and is no longer repeated here.

Drawings

Fig. 1 is a perspective view of a drip irrigation and fertilization tube according to an embodiment of the present invention;

FIG. 2 is a perspective view of a cross-sectional view of a drip irrigation fertilization tube according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a drip irrigation fertilization tube according to another embodiment of the present invention;

FIG. 4 is a reference view of the use of the drip irrigation and fertilizer application pipe according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an injection fertilization system according to an embodiment of the present invention;

fig. 6 is a perspective view of a filter assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a box body according to an embodiment of the present invention;

fig. 8 is a schematic view of the position of the fertilizer liquid barrel and the filtering assembly according to an embodiment of the present invention;

fig. 9 is a schematic view of the position of the fertilizer liquid barrel and the filtering component in another embodiment of the present invention.

Description of reference numerals:

1. a drip irrigation and fertilization pipe 10, a communicating water pipe 11 and a water inlet

12. Water outlet 13, mounting groove 14 and guide conical surface

20. Fertilizer feeding pipe 21, straight pipe 22 and bent pipe

30. First switch valve 40, outlet pipe 50, second switch valve

2. Injection fertilization system 60, fertilizer liquid barrel 61 and rotary impeller

62. Support frame 70, water pump 80, filtering component

81. Case 82, filter screen 83 and pressure plate

84. Fastener 3, drip irrigation pipe 4 and clamp

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to," "secured to," or "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "in communication" it can be directly in communication with the other element via a passageway, or indirectly in communication with the other element via other elements, lines, valves, etc. When an element is referred to as being "disposed on," "disposed on" another element, it can be directly on the other element or intervening elements may also be present. "plurality" means two or more. "at least one" refers to one or more quantities.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Referring to fig. 1 to 9, a drip irrigation and fertilization tube 1 and an injection and fertilization system 2 according to an embodiment of the present invention will be described.

Referring to fig. 1 and 2, in a first aspect, an embodiment of the present invention provides a drip irrigation and fertilization tube 1, including: a water inlet 11 and a water outlet 12 are respectively arranged at two ends of the water pipe 10; the fertilizer feeding pipe 20 is obliquely arranged on the communicating water pipe 10 along the length direction of the communicating water pipe 10, and one end, adjacent to the water outlet 12, of the fertilizer feeding pipe 20 is communicated with the communicating water pipe 10; and a first on-off valve 30 provided in the fertilizer inlet pipe 20.

As shown in fig. 4, the embodiment of the present invention is installed on the drip irrigation pipe 3 when in use, the fertilizer liquid is pumped into the communicating water pipe 10 through the fertilizer feeding pipe 20, and mixed with the irrigation water in the communicating water pipe 10, and is delivered to the vicinity of the root system of the plant along with the irrigation water, so as to realize the drip irrigation and fertilization operation.

Specifically, the communicating water pipe 10 can be directly connected with the drip irrigation pipe 3 through the clamping hoop 4, the screws, the flange connecting plate, the adhesive, the hot melt and the like, and can also be indirectly connected with the drip irrigation pipe 3 through connecting pipe fittings such as a connecting head and the like. The material of the communicating water pipe 10 and the fertilizer feeding pipe 20 can be metal, plastic, etc., and the fertilizer feeding pipe 20 can be connected with the communicating water pipe 10 by welding, gluing, etc. The first switch valve 30 is used for controlling the opening and closing of the pipeline of the fertilizer feeding pipe 20, when fertilizer application is not needed, the pipeline of the fertilizer feeding pipe 20 is controlled to be closed through the first switch valve 30 to prevent leakage, and the first switch valve 30 can be a ball valve, a plug valve, an electromagnetic valve and the like.

Referring to fig. 5, when the drip irrigation and fertilizer application pipe 1 provided by the embodiment of the present invention is used, the communicating water pipe 10 is connected between the two drip irrigation pipes 3, and can continuously convey irrigation water along the direction from the water inlet 11 to the water outlet 12, and the fertilizer inlet pipe 20 is connected to the water pump 70 for conveying fertilizer liquid, so as to convey fertilizer liquid into the communicating water pipe 10. The fertilizer inlet pipe 20 is inclined to the communicating water pipe 10 along the water flow direction, so that the resistance of the fertilizer liquid entering the communicating water pipe 10 can be reduced, the drip irrigation and fertilization operation can be realized by adopting the water pump 70 with smaller power, the problem of 'backflow' of the fertilizer liquid caused by the overlarge water pressure of the drip irrigation pipe 3 is avoided, the equipment cost is reduced, and the success rate of the drip irrigation and fertilization is improved.

When the fertilizer is a solid fertilizer, it is necessary to dissolve the fertilizer into a fertilizer liquid in the fertilizer liquid barrel 60 in advance, so as to facilitate the field water intake to dissolve the fertilizer, please refer to fig. 1, fig. 2 and fig. 4, in some possible embodiments, the drip irrigation fertilization pipe 1 further includes: one end of the water outlet pipe 40 is communicated with the communicating water pipe 10; and a second switch valve 50 provided in the water outlet pipe 40.

It should be noted that the water is received through the water outlet pipe 40 to dissolve the fertilizer, which is only one specific application scenario of the embodiment, and the embodiment is also applicable to other scenarios requiring water taking. One or more water outlet pipes 40 may be provided as required, and the embodiment is not limited thereto.

This embodiment is through setting up outlet pipe 40, can directly receive the water in order to dissolve fertilizer from the exit of outlet pipe 40, and field operation is more convenient. When receiving water, the container can be directly placed below the outlet of the water outlet pipe 40 to receive water, and can also be connected into the container through a water pipe and the like. After the water receiving is finished, the second switch valve 50 controls the pipeline of the water outlet pipe 40 to be closed, so as to prevent leakage, and the second switch valve 50 can be a ball valve, a plug valve, an electromagnetic valve and the like.

Referring to fig. 1, in a specific embodiment, the water outlet pipe 40 may be disposed obliquely to the communication water pipe 10 along the length direction of the communication water pipe 10, and the oblique arrangement occupies a smaller space than the arrangement perpendicular to the communication water pipe 10, so that the water outlet pipe is more convenient to carry and store. Specifically, the inclination angles of the water outlet pipe 40 and the communicating water pipe 10 can be the same as or different from that of the fertilizer inlet pipe 20.

Referring to fig. 2, in one embodiment, the water outlet pipe 40 is disposed obliquely to the water communication pipe 10 along the length direction of the water communication pipe 10, and one end of the water outlet pipe 40 adjacent to the water inlet 11 extends into the water communication pipe 10 and is communicated with the water communication pipe 10. So set up, the flow is bigger when can making outlet pipe 40 go out water, shortens the water receiving time, and the water receiving is efficient higher.

Referring to fig. 1, in a specific embodiment, the communicating water pipe 10, the fertilizer inlet pipe 20 and the water outlet pipe 40 are all cylindrical straight pipes, and can be directly processed by using seamless steel pipes and other profiles, which can save the manufacturing cost. Of course, the cross section and the shape of the communicating water pipe 10, the fertilizer inlet pipe 20 and the water outlet pipe 40 may also be other shapes, such as a serpentine circular pipe, a serpentine square pipe, an L-shaped square pipe, etc., which is not limited in this embodiment.

Referring to fig. 1, in a specific embodiment, a plane formed by the communicating water pipe 10 and the fertilizer inlet pipe 20 is defined as a first plane, a plane formed by the communicating water pipe 10 and the water outlet pipe 40 is defined as a second plane, and an included angle between the first plane and the second plane is 0 to 180 °, and may be 90 °, that is, the first plane and the second plane are perpendicular.

Referring to fig. 1 and 2, in some possible embodiments, the end of the water outlet pipe 40 communicating with the water pipe 10 and the end of the fertilizer inlet pipe 20 communicating with the water pipe 10 are sequentially arranged along the direction from the water inlet 11 to the water outlet 12. So set up, can avoid opening the irrigation water that has the fertilizer liquid when the second ooff valve 50 water intaking and flow out from outlet pipe 40.

Referring to fig. 2, in some possible embodiments, the fertilizer inlet pipe 20 includes a straight pipe portion 21, which is disposed obliquely to the communicating water pipe 10 along the length direction of the communicating water pipe 10, and one end of the fertilizer inlet pipe adjacent to the water outlet 12 extends into the communicating water pipe 10, so as to further reduce the resistance of the fertilizer liquid entering the communicating water pipe 10 along the fertilizer inlet pipe 20, and enable the water pump 70 with smaller power to satisfy the fertigation operation.

In this embodiment, the communicating water pipe 10 and the fertilizer inlet pipe 20 can be manufactured by using seamless steel pipes with different diameters, a mounting hole is formed in a certain position of the communicating water pipe 10 in advance, one end of the fertilizer inlet pipe 20 extends into the mounting hole and is placed at a proper angle, and finally the position of the mounting hole is welded or bonded, so that the communicating water pipe 10 and the fertilizer inlet pipe 20 are fixed together. In order to ensure the quality of the product, the produced drip irrigation and fertilization tube 1 may be subjected to rust prevention treatment such as blackening treatment, galvanization, and the like, and subjected to a pressure test. The pressure value of the pressing test can be 1.2-1.5 times of the water pressure of the drip irrigation pipe 3.

In practical use, the communicating water pipe 10 may be a straight pipe adapted to the diameter of the drip irrigation pipe, or a reducer pipe having two ends adapted to the diameter of the drip irrigation pipe and a middle diameter larger than the diameter of the drip irrigation pipe. In a specific embodiment, the communicating water pipe 10 includes a first connecting pipe, a second connecting pipe and a third connecting pipe which are connected in a transition manner in sequence, wherein the outer diameters of the first connecting pipe and the third connecting pipe are adapted to the drip irrigation pipe for connecting with the drip irrigation pipe, the inner diameter of the second connecting pipe is larger than the first connecting pipe and the third connecting pipe, the fertilizer inlet pipe 20 is disposed at a position corresponding to the second connecting pipe, and due to the increase of the inner diameter of the second connecting pipe, the flow rate of irrigation water entering the second connecting pipe during drip irrigation is reduced, the pressure is reduced, and the fertilizer liquid is conveniently injected.

Referring to fig. 3, an arrow indicates a water flow direction, and as another embodiment of the drip irrigation and fertilization tube 1, in addition to the above embodiment, the fertilizer inlet tube 20 further includes an elbow portion 22 disposed inside the communication water tube 10, one end of the elbow portion 22 is communicated with one end of the straight tube portion 21 located inside the communication water tube 10, and the other end is disposed toward the water outlet 12.

In the present embodiment, the resistance of the fertilizer solution entering the communication water pipe 10 can be further reduced by providing the bent pipe portion 22. The fertilizer inlet pipe 20 includes a straight pipe portion 21 and an elbow portion 22, and one end of the straight pipe may be bent or connected to one end of the straight pipe portion 21 by welding, bonding, or the like.

Referring to fig. 1 and 4, in some possible embodiments, the outer pipe wall of the end of the communication water pipe 10 adjacent to the water inlet 11 and the water outlet 12 is provided with an annular mounting groove 13.

The both ends of intercommunication water pipe 10 are passed through clamp 4 and are connected with drip irrigation pipe 3 in this embodiment, and the position is established to the cover of clamp 4 and is corresponded with the position of mounting groove 13, can avoid clamp 4 to take place the slippage, guarantees to connect stably. Specifically, one or more mounting grooves 13 can be arranged as required.

Referring to fig. 1, in some possible embodiments, the end of the outer wall of the communicating water pipe 10 adjacent to the water inlet 11 and the water outlet 12 has a guiding taper 14. The diameter of the guide conical surface 14 is gradually reduced towards the end surface direction, so that the drip irrigation pipe 3 is conveniently sleeved outside the communicated water pipe 10, and the installation is easier and more labor-saving.

Referring to fig. 5, arrows indicate water flow directions, and in a second aspect, the present invention provides an injection fertilization system 2, including: the drip irrigation and fertilization pipe 1 as in any one of the above embodiments; a fertilizer liquid barrel 60; and a water pump 70, wherein a liquid inlet of the water pump 70 is communicated to the fertilizer liquid barrel 60, and a liquid outlet of the water pump 70 is communicated with the fertilizer inlet pipe 20.

The embodiment of the utility model provides a through water pump 70 with fertilizer liquid pump sending or "injection" in the fertilizer liquid bucket 60 advance the intercommunication water pipe 10 in, make the fertilizer liquid mix with the irrigation water in the intercommunication water pipe 10, carry near the root system of plant along with the irrigation water, realize fertigation operation. The fertilizer liquid barrel 60, the water pump 70 and the drip irrigation and fertilization pipe 1 can be communicated through a water hose. Fertilizer liquid bucket 60 is used for depositing the fertilizer liquid, in order to conveniently look over the fertilizer liquid volume, adjust the concentration of fertilizer liquid, can set up the scale mark that is used for marking the volume on fertilizer liquid bucket 60. The water pump 70 may be a direct flow pump, an alternating flow pump, a hand pump, or the like, and may be disposed outside the fertilizer liquid tank 60, or disposed inside the fertilizer liquid tank 60 and immersed in the fertilizer liquid, such as a submersible pump.

Referring to fig. 5-7, in some possible embodiments, the injection fertilization system 2 further includes a filter assembly 80 disposed within the fertilizer fluid tank 60.

This embodiment is through setting up filter assembly 80, can prevent that impurity such as not dissolved fertilizer granule, plant branch and leaf, sand grain from getting into drip irrigation pipe 3 along with water pump 70 and causing the jam. Specifically, the filter assembly 80 may include a housing in communication with the inlet of the water pump 70 and a screen, stainless steel mesh, filter cartridge, or the like disposed within the housing.

Referring to fig. 6 and 7, in some possible embodiments, the filter assembly 80 includes: the box body 81 is provided with an accommodating space for accommodating the water pump 70 or communicated with a liquid inlet of the water pump 70, and at least one side of the box body 81 is provided with an opening communicated with the accommodating space; and a filter screen 82 covering the opening.

Seted up one or more openings on the box 81 in this embodiment, the opening upper cover is equipped with filter screen 82, can filter the fertilizer liquid that gets into in the accommodation space to separation impurity gets into water pump 70. When the water pump 70 is a submersible pump, the water pump 70 may be directly disposed in the tank 81, and when the water pump 70 is disposed externally, a liquid inlet of the water pump 70 may be communicated to the accommodating space through a flexible water pipe or other pipe.

In this embodiment, the filtering net 82 may be a plurality of net sheets or net plates covering the corresponding openings, or may be a net bag with filtering holes, and the net bag is wrapped outside the whole box 81. To secure the filter screen 82, as shown in fig. 6 and 7, in one specific embodiment, the filter assembly 80 further includes a pressure plate 83 pressing on the filter screen 82, and a fastener 84 for securing the pressure plate 83 to the housing 81, wherein the fastener 84 may be a screw.

When fertilizer particles are large or the outdoor temperature is low, the fertilizer is not easy to dissolve, and the problems that the concentration of the fertilizer liquid is low in the early stage of drip irrigation and the concentration of the fertilizer liquid is high in the later stage of drip irrigation can be caused. To this end, referring to fig. 8, in some possible embodiments, at least one rotating impeller 61 and a motor for driving the rotating impeller 61 to rotate are disposed in the bottom of the fertilizer liquid barrel 60, and the motor is in transmission connection with the rotating impeller 61 through a gear, a belt, and the like.

This embodiment sets up motor drive's rotation impeller 61 in fertilizer liquid bucket 60, has a plurality of spoilers on the rotation impeller 61, enables water to produce during rotatory and flows to accelerate dissolving of fertilizer, guarantee fertigation's equilibrium and stability.

Since the rotary pulsator 61 rotates to generate water flow, the filter assembly 80 may move when the water flow is too large, and the filter assembly 80 collides with the rotary pulsator, which may cause damage to components. Therefore, a baffle or the like for fixing the filter assembly 80 may be provided in the fertilizer liquid tank 60.

Referring to fig. 8, when the fertilizer solution barrel 60 has a large volume, the filter assembly 80 and the rotary impeller 61 are staggered, and the bottom of the fertilizer solution barrel 60 is provided with a baffle around the filter assembly 80 to limit the movement of the filter assembly 80 and prevent the filter assembly 80 from colliding with the rotary impeller 61.

Referring to fig. 9, as another embodiment of the fertilizer liquid barrel 60, when the fertilizer liquid barrel 60 has a smaller volume, the filter assembly 80 is disposed above the rotary impeller 61 through the support frame 62, and the filter assembly 80 and the rotary impeller 61 can also be prevented from colliding with each other.

It is to be understood that, the parts in the above embodiments may be freely combined or deleted to form different combination embodiments, and specific contents of each combination embodiment are not described herein again, and after this description, it can be considered that the present invention has described each combination embodiment, and can support different combination embodiments.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Drip irrigation fertilization pipe, its characterized in that includes:

a water inlet and a water outlet are respectively arranged at the two ends of the water pipe;

the fertilizer feeding pipe is obliquely arranged on the communicating water pipe along the length direction of the communicating water pipe, and one end of the fertilizer feeding pipe, which is adjacent to the water outlet, is communicated with the communicating water pipe; and

the first switch valve is arranged on the fertilizer inlet pipe.

2. The drip irrigation and fertilization tube of claim 1, further comprising:

one end of the water outlet pipe is communicated with the communicating water pipe; and

and the second switch valve is arranged on the water outlet pipe.

3. The drip irrigation fertilization tube of claim 2, wherein an end of the water outlet tube in communication with the communication water tube and an end of the fertilizer inlet tube in communication with the communication water tube are sequentially arranged in a direction from the water inlet to the water outlet.

4. The fertigation pipe according to claim 1, wherein the fertilizer inlet pipe comprises a straight pipe portion that is inclined to the communication water pipe in a longitudinal direction of the communication water pipe and has an end adjacent to the water outlet extending into the communication water pipe.

5. The fertigation pipe as claimed in claim 4, wherein the fertilizer inlet pipe further comprises an elbow part arranged in the communication water pipe, one end of the elbow part is communicated with one end of the straight pipe part in the communication water pipe, and the other end of the elbow part is arranged towards the water outlet.

6. The drip irrigation and fertilizer application pipe according to claim 1, wherein an annular mounting groove is formed in the outer pipe wall of one end of the communication water pipe adjacent to the water inlet and the water outlet.

7. The fertigation tube as recited in claim 1, wherein the end of the outer tube wall of the communicating tube adjacent to the water inlet and the water outlet has a guiding taper.

8. An injection fertilization system, comprising:

the drip irrigation and fertilization tube of any one of claims 1-7;

a fertilizer liquid barrel; and

and a liquid inlet of the water pump is communicated into the fertilizer liquid barrel, and a liquid outlet of the water pump is communicated with the fertilizer inlet pipe.

9. The injection fertilization system of claim 8, further comprising a filter assembly disposed within the fertilizer barrel.

10. The injection fertilization system of claim 9, wherein the filter assembly comprises:

the water pump is arranged in the water tank, the water tank is provided with a water inlet communicated with the water pump, and the water pump is arranged in the water tank; and

and the filter screen is covered on the opening.

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